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To: =?iso-8859-1?Q?Markus_Gutschke_=28=DC=D2=D0=29?= 
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Cc: Ingo Molnar <mingo@elte.hu>,
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Subject: Re: [PATCH 2/2] x86-64: seccomp: fix 32/64 syscall hole
From: Andi Kleen <andi@firstfloor.org>
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Date: Fri, 08 May 2009 21:18:44 +0200
In-Reply-To: <904b25810905061508n6d9cb8dbg71de5b1e0332ede7@mail.gmail.com> (Markus Gutschke's message of "Wed, 6 May 2009 15:08:40 -0700")
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"Markus Gutschke (мва)" <markus@google.com> writes:
>
> There are a large number of system calls that "normal" C/C++ code uses
> quite frequently, and that are not security sensitive. A typical
> example would be gettimeofday().

At least on x86-64 gettimeofday() (and time(2)) work inside seccomp because 
they're vsyscalls that run in ring 3 only.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only.